JP3365760B2 - Colored structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be painted or pasted in a panel shape, a sheet shape, a film shape, or any other shape. For example, a vehicle such as an automobile or a railroad, a ship, an aircraft, furniture, It is related to the luster material layer structure and decorative structure applied to the painted surface of building materials, electrical appliances, sports equipment, etc. More specifically, not only the hue changes depending on the viewing angle, but also high brightness and high brightness and color The present invention relates to a coloring structure having a degree.

[0002]

2. Description of the Related Art For example, a solid color coating film, a metallic color coating film, or a pearl color coating film has been generally used as a top coat for automobiles. The solid color coating film is a coating film that exhibits a predetermined color with a coloring pigment, the metallic color coating film contains a coloring pigment and fine aluminum pieces, and based on the diffuse reflection of light by the aluminum pieces in addition to the color of the coloring pigment, It is characterized by exhibiting a design property with a so-called “glitter feeling”. In addition, the pearl color coating is made by applying a transparent mica base coating containing mica flakes on the color base coating, so that the metallic color coating is performed by the light reflected by the mica base coating and the light reflected by the color base coating. In addition to the film-like "glittering feeling", it is characterized in that reflected light softer than metallic reflection can be obtained due to the interference effect of mica. Recently, by using special mica, a so-called “iridescent” design, in which the hue changes depending on the viewing angle, has also appeared.

In addition, designable seals, marking films (used for stripes, logo marks, etc.), stickers, etc. made of light-reflecting materials to be attached to the surface of various objects have appeared. On the other hand, also in fields other than automotive coating, for example, in various fields such as office automation equipment and panels for home appliances including high-quality bottles and bottle containers, press blow molding,
A pearl mica layer was also provided on the main layer (colored layer) and a skin layer (transparent layer) was further provided on the main layer (colored layer) for the purpose of decorating the surface of the blow-injection body, the bubble blow molded body, etc. 3
Layered structures have also appeared.

[0004]

As described above, in recent years, in various fields including automobiles, the designs of painting and surface decoration have been diversified, and in order to cope with this, the conventional metallic The development of a technique for obtaining a coloring structure having a novel design property that cannot be obtained with a color or a pearl color has been an issue.

[0005]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to the above problems in the glitter material layer technology and the decoration technology of various industrial products including automobiles, and the hue changes depending on the viewing angle. The purpose of the present invention is to provide a novel coloring structure which not only has improved glitter, but also has significantly increased brightness and saturation.

[0006]

According to a first aspect of the present invention, there is provided a color-forming structure in which interference light due to reflection interference of light obtained by alternately laminating two kinds of polymers having different refractive indexes, and interference light. Other than the above, a glitter material layer containing a transparent glitter material for controlling transmitted light is provided on a light-reflecting base material that reflects incident light to the incident side, and the transparent glitter material has two types.
The refractive index of the polymer is na and nb, respectively, and the layer thickness
And let da and db, obtain the interference color of wavelength λ1
Therefore, the primary reflection peak wavelength λ1 satisfies λ1 = 2 (na da + nb db) , and at least the incident light source spectrum has an interference color generated by reflection interference by the transparent glitter material in the glitter material layer and a transparent glitter material. The first object color in which the transmitted incident light source spectrum acts on the light-reflecting base material to produce a color, and the incident light source spectrum acts directly on the light-reflecting base material color base without acting on the transparent glittering material. Second to develop color
The color-forming structure according to claim 2 of the present invention is provided on one surface of a light-transmissive base material having a light-transmitting property. A bright material layer containing a transparent bright material that controls the interference light due to the reflection interference effect of light obtained by alternately stacking two kinds of polymers having different refractive indexes and the transmitted light other than the interference light. with some, on the other surface of the light transmitting substrate, is provided with light-reflecting substrate for reflecting the incident side of light incident is, the transparent luminous material has a refractive of two polymers
The ratios are na and nb, respectively, and the layer thicknesses are da and d.
Let b be the first order anti-reflection color to obtain the interference color of wavelength λ1.
The emission peak wavelength λ1 satisfies λ1 = 2 (na da + n b db) , and at least the incident light source spectrum has an interference color that is caused by reflection interference by the transparent glitter material in the glitter material layer and an incident light source that transmits the transparent glitter material. A first object color whose spectrum acts on the interface of the light-transmissive substrate to produce a color, and an incident light source spectrum transmitted through the transparent luster material and the light-transmissive substrate produces a color by acting on the light-reflective substrate. No. 2 object color, a third object color in which the incident light source spectrum directly interacts with the interface of the light-transmissive base material without acting with the transparent glitter material, and the third object color without interacting with the transparent glitter material. It is characterized in that it is configured to have a coloring mechanism that causes a hue change by mixing the incident light source spectrum transmitted through the light-transmissive base material and the fourth object color that is colored by acting on the light-reflective base material. And to the coloring structure Kicking and a means for solving the conventional problems described above such configuration.

As an embodiment of the coloring structure according to the present invention, in the coloring structure according to claim 3, the light-reflecting substrate is made of a metallic material, a semiconductor material, or a combination material of a metallic material and a semiconductor material. In the color-developing structure according to claim 4, the light-reflecting base material is made of a material having specular reflectivity, and the color-developing structure according to claim 5, A plurality of glitter material layers are laminated and provided.

In the coloring structure according to a sixth aspect of the present invention, the transparent glittering material contained in the glittering material layer of each layer laminated is designed so as to emit different interference colors in each layer, In the coloring structure according to the seventh aspect, the transparent glittering materials contained in one glittering material layer are designed to emit different interference colors. Furthermore, in the coloring structure according to claim 8, the transparent glittering material contained in the glittering material layer is dispersed at intervals allowing direct emission of an incident light source spectrum, and the coloring structure according to claim 9 Is
The light-transmitting layer having a light-transmitting property is provided on the upper surface of the glitter material layer, and the coloring structure according to claim 10 has an achromatic color system or a chromatic color system in the laminated structure of the transparent glitter material. It is characterized in that it is provided with a layer containing a dye.

Further, in the color-developing structure according to the eleventh aspect, the transparent luster pigment has at least one of the at least two kinds of polymers around the laminated portion, another polymer different from these polymers, or these polymers. A configuration with a clad layer consisting of a combination,
In the coloring structure according to claim 12, the transparent luster material has a substantially rectangular cross section, and when the length of the side perpendicular to the laminating surface in the cross section of the transparent luster material is 1, the side parallel to the laminating surface. Is 0.8 to 25, and the length of the transparent glitter material is 0.8 to 4000. In the color forming structure according to claim 13, the transparent glitter material is in the glitter layer. A composition containing 0.1 to 30% by mass of the total amount, and further, in the coloring structure according to claim 14, for sticking on at least a part of the light-reflective substrate on the opposite side of the glitter layer. It is characterized in that it has a structure having an adhesive layer, and that such a structure in the color forming structure is used as a means for solving the above-mentioned conventional problems.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In the coating structure according to the present invention, for example, as shown in FIG. 1 (a), at least two kinds of polymers having different refractive indexes as described later are laminated alternately or repeatedly in a fixed order. The interference light by the reflection interference effect of the light obtained by providing the multilayer structure, and the glitter material layer 20 containing the transparent glitter material 10 for controlling the transmitted light other than the interference light at a predetermined concentration, the incident light efficiently, A structure provided on the light-reflecting base material 30 for reflecting to the incident light side, or, as shown in FIG. 2A, on one surface of the light-transmitting base material 40 having the light-transmitting property, The transparent luster material 1
A basic structure is a structure in which a bright material layer 20 containing 0 in a predetermined concentration is formed, and a light-reflecting base material 30 for efficiently reflecting incident light to the incident light side is provided on the opposite surface thereof. To do.

Here, the light-reflecting base material 30 is not particularly limited as long as it is a material capable of efficiently reflecting incident light to the incident light side, but basically it has a high average reflectance in the visible light region. From the viewpoint, it is preferable that the average reflectance is 40% or more, and preferably 60% or more. A typical example thereof is one that performs electron transfer based on the action of free electrons within the energy band peculiar to the material forming the light-reflecting base material 30.

[0012] As an example, a metallic material can be cited.
Since the surface of l, Mg, etc. usually exhibits high reflectance,
When light is incident on the surface of the metallic material, it is absorbed very little and is mostly reflected, so that it looks white or gray. Further, in the case of Au or Cu, since light having a wavelength shorter than that of green is absorbed, yellow, which is a complementary color to these, overlaps with other wavelengths, and looks like a golden color.

By using such a light-reflecting base material 30, as will be described later, most of various kinds of incident light are not absorbed but reflected to the incident high side, so that the incident light is reflected. In the eyes of a person looking at the high side, it feels as if it induces a high brilliance, and that the brightness and saturation are further increased. Also,
When these materials are used as the light-reflecting base material 30, since they have a unique metallic luster, there is an advantage that a high-class feeling can be added.

As typical examples of such materials, in addition to the above-mentioned various metallic materials, semiconductor materials or a combination material of both materials can be cited. As an example of metallic materials, Au, Ag, Al, Cr, Cu, Ni, Ti, Fe,
Examples thereof include Zn, Pt, Rh, Ni-Cr, Au-Cu, SUS and the like.

As an example of the semiconductor material, Si,
Ge, GaAs, GaP, InP, PbS, SiC, C
Examples thereof include dS, and a combination of a metallic material and a semiconductor material may be used.

The shape of the light-reflecting base material 30 is as follows.
It is not particularly limited as long as it has a shape capable of efficiently reflecting incident light to the incident light side, and can be applied to various objects having a film shape, a plate shape, a linear shape, and irregularities. Also,
The thickness may be a bulk level or a thin film level.

The surface state of the light-reflecting base material 30 that comes into contact with the glitter material layer 20 is not particularly limited, and for example, the unevenness on the surface is of the same level as or larger than the wavelength. It may be a diffuse reflection surface (in this case, reflected light travels in an irregular direction), or may be a specular reflection surface whose surface is smooth and is reflected in a substantially constant direction like a mirror. However, in order to efficiently reflect the incident light to the incident side, it is more preferable that the surface of the light reflecting base material 30 on the incident light side has specular reflectivity.

By making the surface of the light-reflecting base material 30 specular, the reflection intensity of the incident light source spectrum from the light-reflecting base material 30 is further increased. With the high brightness of
There is a synergistic effect that the saturation is also increased.

On the other hand, as the bright material layer 20, for example, a coating material containing the transparent bright material 10 is used as the light reflecting base material 3 as described above.
0, or formed by printing on the light-reflective substrate 30 with an ink containing the transparent glitter material 10, and further, the transparent glitter material 10 is applied to various adhesives having light transmittance. It may be contained and formed.

It is also possible to form the glitter material layer 20 by incorporating the transparent glitter material 10 in a resin having a light transmitting property. In order to manufacture such a glitter material layer 20, it is possible to obtain a desired size and shape by utilizing, for example, a known film forming technique or various molding techniques such as injection molding, extrusion molding, blow molding and the like. it can.

When coating the coating material containing the transparent luster color material 10, it is desirable to adopt spray coating with high productivity, but known dip coating (dip method), brush coating, roller coating, flow coating, Spin coating (rotation coating)
Etc. can be applied.

Further, in the case where the thickness of the light-reflecting base material 30 itself is thin, or the adhesiveness between the bright material layer 20 and the light-reflecting base material 30 is poor, etc., as shown in FIG. In addition, the luster material layer 20 is provided on one surface of the light transmissive base material 40 having light transmissivity, and on the opposite surface thereof, the light reflective base material 30 for efficiently reflecting the incident light to the incident light side. By providing, the second basic structure can be obtained.

In the structure shown in FIG. 2A, a normal bulk material such as various metal materials, semiconductor materials, or a combination material of both materials, or a foil is used as it is as the light-reflecting substrate 30. May be used, or the light-transmitting substrate 4
A thin film made of various metal materials, semiconductor materials, or a combination material of both materials may be formed on the surface of 0 by plating or vapor deposition.

The light transmissive base material 40 herein means, for example, glass, ceramics, resin, etc., in the visible light region (wavelength 380 to 780 nm).
It may be colored or colorless as long as it has a light transmitting property, but as described later, it is said that the attenuation of the anti-shielding of the incident light from the light reflecting base material 30 is suppressed as much as possible. From a viewpoint, a colorless and transparent material is more desirable.

Considering the processability into various shapes which will be described later, a resin material is preferable as the light transmissive substrate 40, and a thermoplastic resin, a thermosetting resin, an ultraviolet curable resin or the like is appropriately used.

As described above, the structure in which the luster material layer 20 is provided on the light-reflecting base material 30 or the luster material layer 20 on one surface of the light-transmissive base material 40 and the light-reflecting base material on the opposite surface thereof. Material 30
By providing the structure, the light incident from the side of the glitter material layer 20 is combined based on the interaction between the transparent glitter material 10 contained in the glitter material layer 20 in an appropriate amount and the interface of the light reflecting base material 30. As an effect (path of light and its synthesis), it finally induces high brilliance in the human eye located on the incident side, and also brightness,
It will be perceived as a sense of increased saturation.

Here, in order to clarify the peculiarity of the transparent luster pigment 10 used in the color forming structure according to the present invention, a conventional pearl mica pigment (luminous pigment) will be briefly described.

In the case of the pearl mica pigment and the like, in order to maximize the hiding power, the translucent or opaque mica which is the base material is coated with titanium dioxide or the like, and in some cases, a metal layer is provided thereon. There are many structures.

Taking a translucent pearl mica pigment for comparison with the transparent luster pigment 10 of the present invention, in this case, a part of the incident light is absorbed or reflected,
The remaining part is emitted as transmitted light from the pearl mica pigment in the direction opposite to the incident light, but the transmitted light has low intensity and, as will be described later, the transparency and purity are poor.

In the case of an opaque pearl mica pigment, incident light is absorbed or reflected, and almost no transmitted light is generated, so that the hiding power is high. Since it is small, the reflection intensity is not sufficient, and it cannot be said that it is always sufficient as an interference color. The hiding power decreases as the amount of light transmitted through the pearl mica pigment increases.

On the other hand, the transparent luster pigment 10 used in the present invention is
As described above, it is based on the completely opposite idea that the hiding power is reduced to the utmost by not covering the hiding power by coating titanium dioxide or the like on the base material made of a translucent material or an opaque material. It has an alternating multi-layered laminated structure consisting of at least two types of polymers, and maximizes both the color development by interference of reflected light (interference color) and the color development by emitted light with transmitted light other than reflection interference (transmission color). It is intended to improve the design and decoration by using it for a limited time.

The path of light of the incident light source spectrum in the color forming structure of the present invention using such a transparent luster material 10 can be roughly divided into two paths.

Regarding the path of this light, first, FIG.
The structure shown in FIG. 1 will be taken as an example and specifically described with reference to FIG. That is, the light incident on the glitter material layer 20 containing an appropriate amount of the transparent glitter material 10, that is, the incident light source spectrum L1 returns to the incident side through almost two paths as shown in the figure.

First, one system is the incident light source spectrum L.
The interference light L3 in which 1 is reflected and interfered by the transparent glitter material 10 contained in the glitter material layer 20 and the transmitted light L2 of the incident light source spectrum L1 transmitted through the transparent glitter material 10 is the light reflecting base material 30. This is the path of the reflected light L4 that acts and returns to the incident side.

The other system is the incident light source spectrum L1.
Is the path of the reflected light L5 that directly acts on the light-reflecting base material 30 and returns to the incident side without acting on the transparent glittering material 10 contained in the glittering material layer 20.

The characteristic tint developed by these lights will be described below. The interference light L3, which is the light whose phase is controlled, is an interference color Ci3 of a specific wavelength λ having a high transparency determined by the laminated structure of the transparent glittering material 10, as described later.
In addition, since the light source spectrum L2 after the incident light source spectrum L1 has passed through the transparent luster material 10 is also the afterglow of the phase-controlled interference light L3, it is extremely transparent like the interference light L3. As a light source spectrum, it is incident on a light-reflecting base material 30 having a high reflection function, and a unique object color Cb4 is developed as reflected light L4 from the light-reflecting base material 30.

On the other hand, the incident light source spectrum L1 directly acts on the light-reflecting base material 30 without acting on the transparent glitter material 10 (without passing through the transparent glitter material 10) and returns to the incident side. The object color Cb5 due to L5 is also expressed.

In this way, a person can make the incident light source spectrum L1
When viewing the coloring structure of the present invention on the incident side of, the interference light L
Interference color Ci3 with high transparency due to 3, object color Cb4 with high transparency due to reflected light L4, and reflected light L5
In addition to synthesizing the object color Cb5 and the like by the above, in addition to the improvement in glitter due to the high reflection function of the light from the light reflecting base material 30,
The saturation is increased.

As will be described later, when the surface of the light-reflecting base material 30 has extremely high specular reflectivity, the light-reflecting base material 30 is used.
Since a large amount of light is reflected from various kinds of light (L1, L2, etc.) incident on the light at a specific light-receiving angle, further high brightness, high brightness, and high saturation are felt at the light-receiving angle.

Next, a light transmissive substrate 40 having light transmissivity.
FIG. 2 (b) shows a light path in the second basic structure (see FIG. 2 (a)) in which the luster material layer 20 is provided on one surface and the light reflecting base material 30 is provided on the opposite surface side. It will be specifically described.

Light incident on the glitter material layer 20 containing an appropriate amount of the transparent glitter material 10, that is, the incident light source spectrum L1
Returns to the incident side by the route as shown in FIG.

One of the systems is the incident light source spectrum L1.
Is reflected by the transparent glitter material 10 contained in the glitter material layer 20 and returns, and the transmitted light L2 of the incident light source spectrum L1 transmitted through the transparent glitter material 10 and the light transmissive base material 40. The reflected light L6 that is reflected at the boundary and returns, and the transmitted light L2 that further passes through the light transmissive base material 40 and then acts on the light reflective base material 30 to return to the incident side.
Is the route.

The other system is the incident light source spectrum L1.
However, the reflected light L8 which is directly reflected at the boundary with the light transmissive base material 40 and returns without acting on the transparent bright material 10 contained in the bright material layer 20, and the reflected light L8 other than the reflected light L8. The remaining light is a path of reflected light L9 that returns to the incident side by acting on the light-reflecting base material 30 after passing through the light-transmitting base material 40.

Hereinafter, the characteristic tint and texture expressed by these lights will be described as in the case of the first basic structure.

The interference light L3 which is the light whose phase is controlled is
As will be described later, an interference color Ci3 of a specific wavelength λ having a high transparency determined by the laminated structure of the transparent luster material 10 is developed, and the transmission light source spectrum L2 after the incident light source spectrum L1 passes through the transparent luster material 10 is also generated. Since it is the afterglow of the phase-controlled interference light L3, the light-transmissive base material 40 is used as a light source spectrum having an extremely high transparency like the interference light L3.
Of the light source spectrum L2, and the remaining light of the light source spectrum L2 is incident on the light-reflecting base material 30. , A unique object color Cb7 is developed as the reflected light L7 from it.

On the other hand, the incident light source spectrum L1 is reflected directly at the boundary with the light transmissive base material 40 without returning to the transparent glitter material 10 (without passing through the transparent glitter material 10) and returns. Object color Cb8 due to reflected light L8 and reflected light L
The rest of the light other than 8 acts on the light-reflecting base material 30 to develop the object color Cb9 by the reflected light L9 returning to the incident side.

As described above, when a person looks at the coloring structure of the present invention on the incident side of the light source spectrum L1, the interference color Ci3 having a high transparency due to the interference light L3 and the object having a high transparency due to the reflection light L6 are also present. In addition to the combination of various colors such as the color Cb6, the system of the object color Cb7 by the reflected light L7, the object color Cb8 by the reflected light L8, the object color Cb9 by the reflected light L9, the light from the light-reflecting base material 30. It is possible to obtain improved brightness and high brightness and saturation due to the high reflection function of.

Here, when the surface of the light-reflecting base material 30 is close to specular reflection, various lights (L
The amount of reflection from a specific light receiving angle (1, 1, L2, etc.) becomes extremely large, so that at that light receiving angle, high brilliance, high brightness, and high saturation are felt.

As a function of the transparent glitter material 10 described above, not only the interference light and the transmitted light are expressed, but also the function of controlling the interference light and the transmitted light other than the interference light is provided. The “control” here means the intensity of the interference light or the transmitted light (the intensity of the transmitted light transmitted through the transparent glittering material 10 (in other words, the reflection intensity of the interference light, the transmission intensity of the transmitted light) or the reflection). This means that the peak wavelengths in the spectrum and the transmission spectrum can be arbitrarily changed, and has a kind of light intensity conversion function or light wavelength conversion function. By providing a layer containing an achromatic or chromatic color dye in the laminated structure of the transparent luster material 10 as described above, this function becomes more remarkable.

The transparent luster color material 10 used in the present invention has a cross-sectional structure as shown in FIG. 3, and is formed by alternately laminating two kinds of polymers 11 and 12, for example. At this time, when the refractive indexes of the polymers 11 and 12 are na and nb, respectively, and the layer thicknesses are da and db, in order to obtain a desired color (interference color of wavelength λ1), the primary reflection peak wavelength λ1 is λ1. = 2 (na da + nb db) must be satisfied.

As will be described later, a resin is generally used as a material which is generally low in cost and excellent in moldability, and is relatively easy to design in various ways according to the application.
As the refractive index conditions of these two kinds of soot resins, it is practically desirable to perform optical design so as to satisfy the relations of na ≥ 1.3 and 1.01 ≤ nb / na ≤ 1.40.

By designing the primary reflection peak wavelength λ 1 so as to satisfy such conditions, the entire color gamut (purple to green
Red), the reflection peak wavelength λ1 is λ1 = 0.38μ
It is possible to develop a hue of m to 0.78 μm and obtain an extremely strong interference color Ci3. Where λ1 is λ1
It is also possible to set in the range of <0.38 μm, λ1> 0.78 μm, and in the case of λ1 <0.38 μm, ultraviolet rays, and in the case of λ1> 0.78 μm, the wavelength on the longer wavelength side than near infrared rays Light can be efficiently reflected to the incident side.

Among the above conditions, the condition of na ≧ 1.3 is due to the material properties of the polymer to be alternately laminated. Regarding the relation of 1.01 ≦ nb / na,
It is based on more practical manufacturing conditions for forming an alternating laminated structure of two polymers and a level that can be actually perceived as a tint by the human eye in the visible light region. The condition of ≦ 1.40 also depends on the manufacturing conditions for forming the alternate laminated structure of two polymers. Especially when the optical thicknesses (refractive index x layer thickness) of the two polymer layers are equal, that is, na
When da = nb db, the reflectance R becomes maximum.

In the present invention, as the polymers 11 and 12 constituting the transparent glitter material 10, for example, polyester,
Polyacrylonitrile, polystyrene, nylon, polypropylene, polyvinyl alcohol, polycarbonate, polyethylene naphthalate, polyethylene terephthalate, polymethyl methacrylate, polyether ether ketone, polyparaphenylene terephthalamide, polyphenylene sulfide, etc. A resin, a blended resin or the like can be used, and two kinds of polymers having different refractive indexes are appropriately selected and used from these.

The number of alternating layers of polymers constituting the transparent luster pigment 10 is not particularly limited, but from the viewpoint of high functionality (reflection interference and transmission of light and transparency) and manufacturing, 5 or more layers, particularly 10 to 10 layers are preferable. A range of 150 layers is desirable.

As a method for producing the transparent glitter material 10 having such an alternating laminated structure, the alternating laminated structure is formed on various base materials by various known thin film forming methods, and then this alternating laminated structure is formed. It can be obtained by peeling or cutting (chipping) the body (thin film).

For example, physical vapor deposition such as vacuum vapor deposition, electron beam vapor deposition, ion plating, molecular beam epitaxy, casting, spin coating, plasma polymerization, Langmuir-Blodgett (LB), or melting, wet or dry method. Various spinning methods such as the above can be used. The melt compounding method, which is particularly excellent in productivity and can be reduced in cost, is suitable for producing the transparent luster pigment 10. In this case, the structure (yarn) can be continuously obtained by using the melt-composite spinning apparatus equipped with a special spinneret for forming the alternate laminated structure, and the structure can be thermally treated by further stretching. The mechanical stability can be secured,
A structure (thread) having a desired color development can be manufactured. After that, the transparent glitter material 10 can be obtained by cutting into a desired length according to various uses.

In the structure of the glittering material layer 20 according to the present invention, for example, the coating film, the binder forming the glittering material layer 20 containing the transparent glittering material 10 is preferably a material having a light transmitting property. Although not limited thereto, a resin system excellent in coating film light performance and coating performance is more preferable. Examples of such resin system include acrylic resin, alkyd resin, polyester resin, polyurethane resin, amino resin, and isocyanate compound. Further, a solvent that dissolves or decomposes the above-mentioned resin or curing agent is also used for paints, for example, toluene, xylene, butyl acetate, methyl acetate, methyl ethyl ketone, methyl isobutyl ketone, butyl alcohol, aliphatic hydrocarbon, Aromatic hydrocarbon and the like can be used. In addition, water can be used as the solventless paint, and there is no particular limitation.

In addition to the transparent glitter material 10, conventional pearl mica, or various organic pigments and inorganic pigments may be used in combination in the glitter material layer 20 of the coloring structure according to the present invention, and further dispersed. It is also possible to use various conventionally used additives such as agents, plasticizers, surface conditioners, and rust preventives. However, when an organic pigment, an inorganic pigment, or the like is used, the hue may become cloudy or cloudy, so it is rather preferable to avoid the addition.

Further, as an example of the present invention, the transparent luster pigment 1
Although a coloring layer 50 containing a usual pearl mica pigment, an inorganic pigment, an organic pigment, or the like may be further provided on the glittering material layer 20 containing 0, high glittering property which is the aim of the present invention, It is not necessarily a good idea from the perspective of increasing brightness and saturation.

In the coloring structure according to the present invention, as described in claim 10, a layer containing an achromatic color dye or a chromatic color dye is formed in the alternately laminated structure portion of the transparent glitter material 10. Therefore, it becomes possible to control the intensity (transmittance) of the light transmitted through the transparent glitter material 10 and the wavelength of the light. Here, the achromatic color means a color having no so-called hue, an object color, which is a series of colors of white, gray, and black, and only the lightness of the three attributes of the color (hue, lightness, saturation) is Have On the other hand, the chromatic color system refers to colors other than the achromatic color system and has the above-mentioned three attributes.

FIGS. 4A and 4B show a glitter material layer using a transparent glitter material 10 having a stray light absorbing layer containing a black dye that absorbs almost 100% of transmitted light as the achromatic dye layer 15. 20 shows a coloring structure used as 20 and its coloring mechanism. A part of the incident light source spectrum L1 is reflected by the transparent glittering material 10 as interference light L3, and the interference color C
Although i3 is expressed, light other than the interference light L3 is absorbed here because the stray light absorbing layer, that is, the achromatic dye layer 15 exists.

On the other hand, the incident light source spectrum L1 directly acts on the light-reflecting base material 30 without acting on the transparent glittering material 10 contained in the glittering material layer 20 in an appropriate amount, and is reflected and returned. The object color Cb5 due to the light L5 is also developed.

Therefore, in this coloring structure,
Various colors due to multiple reflections between the transparent luster pigments 10 also enter the human eye on the side of the incident light source spectrum L1 as stimulus values, but generally, the two colors of the interference color Ci3 and the object color Cb5 are added. It will be perceived as a color mixture.

That is, the stray light absorbing layer 15 is formed of the transparent luster material 1.
Since the light L2 transmitted through the transparent luster color material 10 is almost blocked by adding it to the laminated structure of 0, the interference color Ci3 is emphasized and compared with the case where the stray light absorption layer 15 is not provided,
Higher brilliance and subtle hue change can be obtained.

5 (a) and 5 (b), the transparent glitter material 10 having the chromatic color dye layer 16 in the alternately laminated portion is shown.
2A and 2B show a coloring structure that uses as a glittering material layer 20 and its coloring mechanism. A part of the incident light source spectrum L1 is reflected by the transparent glittering material 10 as interference light L3, and an interference color Ci3 is expressed. Light other than the interference light L3 is absorbed by the chromatic colorant layer 16 to have a specific wavelength, and the remaining light becomes transmitted light L2 and acts on the light-reflecting base material 30 to cause reflected light L3.
4 represents the object color Cb4.

Further, the incident light source spectrum L1 directly acts on the light-reflecting base material 30 without acting on the transparent glittering material 10, and the object color Cb5 by the reflected light L5 reflected and returned.
Also present. As described above, when the transparent glitter material 10 provided with the chromatic color dye layer 16 is used as the glitter material layer 20, various colors due to multiple reflection between the transparent glitter materials 10 also enter as stimulus values. Will be perceived by the human eye as an additive color mixture of these three colors.

If an achromatic dye having a certain degree of light transmission, for example, a dye exhibiting a gray color, is used instead of the chromatic dye, the light intensity of the transmitted light L2 other than the interference light L3 is controlled. It is also possible.

The shape of the transparent glitter material 10 used in the present invention is not particularly limited, but as shown in FIG. 6 (a), either one of the two kinds of polymers 11 and 12 or one of them. It is desirable to provide the clad layer 13 made of a third polymer different from the polymer from the viewpoint of preventing peeling of the laminated portion and improving mechanical strength such as abrasion resistance.

A clad layer made of a combination of these polymers, that is, a double clad layer 14 in which a second polymer 12 is further provided on the outside of the first polymer 11 as shown in FIG. 6B, may be used. .

At this time, as for the shape of the transparent glitter material 10, as described in claim 12, it has a rectangular cross section as shown in FIG. When the length A is 1, the length B of the side parallel to the laminated surface is in the range of 0.8 to 25, and the length L of the transparent glitter material is in the range of 0.8 to 4000. Is desirable,
As a result, the coloring effect due to the reflection interference effect can be sufficiently exhibited without impairing the productivity of the transparent glitter material 10 and the coatability at the time of coating.

That is, when the ratio of the length B of the horizontal side to the length A of the side perpendicular to the laminated surface of the transparent luster material 10 and the ratio of the length L to the length A are smaller than 0.8. When the glitter material layer 20 containing the transparent glitter material 10 (especially in the case of a coating film) adheres to the light reflecting base material 30, there is a probability that the surface contributing to the reflection interference of light does not face the incident light side. Increase,
Coloring due to reflection interference becomes insufficient, and the ratio of the length B of the horizontal side to the length A of the side perpendicular to the laminated surface is 2
If it is larger than 5, a problem occurs during the production of the transparent glitter material 10 and it becomes impossible to stably obtain the transparent glitter material 10 expressing light of a specific wavelength. Furthermore, the ratio of the length L of the transparent glitter material to the length A of the side perpendicular to the laminated surface is 400.
If it exceeds 0, the transparent glittering material 10 in the coating material tends to be clogged with the spray gun during coating, and proper coating cannot be performed.

The content of the transparent glittering material 10 in the color-forming structure according to the present invention is a trade-off between its reflection interference effect and coating film performance, or dispersibility at the time of molding a film, fiber, molded product or the like. Therefore, as described in claim 13, the mass ratio is 0.1 to 3 with respect to the glitter material layer 20.
It is desirable to set it in the range of 0%. That is, when the content of the transparent glitter material 10 is less than 0.1%, the number of elements that develop color due to reflection interference in the glitter material layer 20 are reduced, and a change in hue, a sense of transparency, and a feeling of depth are generated. On the contrary, if it exceeds 30%, the concentration of the transparent luster material 10 exceeds the range of the conventional coating film or molding resin, and the physical properties such as elongation and bending performance of the coating film or molding resin are adversely affected. Is not preferred because it tends to occur.

Further, in the color-forming structure according to the present invention, as described in claim 4, the surface of the light-reflecting substrate 30 has a mirror-like specular reflectivity. This is desirable from the viewpoint of efficiently reflecting the generated light. By doing so, it is possible to make the eyes of the person located on the incident light source side perceive a stronger reflection intensity and a high brilliance.

Further, in the coloring structure according to the present invention, as described in claim 5, a plurality of coating films or resin layers containing an appropriate amount of the transparent luster pigment 10 are provided on the light reflecting base material 30. By stacking layers to secure the thickness, it is possible to induce a sense of depth and a stereoscopic effect when viewed from the incident light side. In addition, a coating film or resin layer containing transparent glittering materials 10 having different lengths is superposed on the light-reflecting substrate 30, and the coating film or resin layer on the upper layer side close to the incident light side is formed. It is also possible to make the length of the transparent glittering material 10 included in the transparent glittering material 10 longer than the length of the transparent glittering material 10 in the layer located on the lower layer side close to the light reflecting base material 30 side. The feeling of depth and depth is further improved.

Further, as described in claim 6, the coloring structure according to the present invention is a coating film as a glittering material layer containing an appropriate amount of the transparent glittering material 10 on the light reflecting substrate 30. In the case of laminating a plurality of resin layers or resin layers, an appropriate amount of the transparent glittering material 10 designed to emit different interference colors can be contained in each layer. It is possible to obtain a hue and a composite texture different from those of the conventional coloring structure that is a combination of the above.

For example, as the transparent glitter material 10 which emits different interference colors, those which emit blue (B), green (G) and red (R) colors are prepared, and the glitter layer containing these is prepared. When sequentially laminated (blue layer / green layer / red layer), depending on the content of the transparent glitter material 10 used therein,
Various transparent colors are possible. When laminated in this manner using conventional inorganic pigments and organic pigments, cloudiness obviously occurs as in paints, resulting in a lack of transparency, but with the coloring structure of the present invention. Since the three primary colors due to the interference of light are used, an extremely transparent tint can be expressed.

As a supplementary note, the above-mentioned glitter material layer containing the transparent glitter material 10 exhibits so-called three colors of the blue (B) layer, the green (G) layer and the red (R) layer as described above. With such a structure in which the respective layers are laminated, it is possible to express all the tints including transparent white by adjusting the coloring intensity of each layer (for example, white W is B + G + R = It becomes a relationship like W).

Further, in the coloring structure according to the present invention, as described in claim 7, the transparent glittering material 10 designed to emit different interference colors in one glittering material layer is suitable. By adjusting the content, it is possible to develop a transparent tint with the same effect as above.

Further, as described in claim 8, a glittering material layer 20 (coating film or resin layer) containing the transparent glittering material 10 is formed, and a transparent layer having a light transmitting property is further formed thereon. The structure having the light layer is preferable from the viewpoint of increasing the surface gloss of the glitter material layer 20 and improving the durability of the glitter material layer 20.

In addition, as described in claim 14,
When viewed from the incident side of the light source spectrum, various adhesive layers for attachment are provided on at least a part of the lower portion of the light-reflecting base material 30, so that various shapes can be formed through the adhesive layer for attachment
It can be attached and fixed on the base material of the material, and the applicable range of the coloring structure is further expanded.

Next, various forms of the color forming structure according to the present invention will be described with reference to FIGS. 7 to 9.

First, as shown in FIG. 1A, the glitter material layer 20 containing an appropriate amount of the transparent glitter material 10 is formed on the light reflecting base material 30 as shown in FIG. 7A. Basically, the structure provided is shown in FIGS. 7 (b), (d), (f), and FIG.
As shown in (g), (h), and (i), the structure in which the translucent layer 50 is provided on the glitter material layer 20 increases the surface gloss of the color forming structure, and the glitter material layer 20. Is desirable from the viewpoint of improving durability. Particularly, in the coating film structure, the transparent layer 50 corresponds to a so-called clear layer.

Further, as shown in FIG. 7C, it is also possible to adopt a structure in which a plurality of glitter material layers 20 and 21 containing the transparent glitter material 10 are provided on the light reflecting base material 30. . In such a case, a structure in which a plurality of glitter material layers 20 and 21 containing transparent glitter materials 10 having different lengths are stacked is used, and the length of the transparent glitter material 10 included in the glitter material layer 21 on the upper side is The transparent glitter material 10 of the lower glitter material layer 20 can be made longer than the transparent glitter material 10, thereby improving the depth and depth of the coloring structure as a whole.

Further, as shown in FIG. 7 (d), the structure in which the light transmitting layer 50 is further provided on the two bright material layers 20 and 21 makes it possible to obtain the depth and depth of the entire coloring structure. Not only the feeling but also the surface gloss can be improved.
The structure shown in FIG. 7E is a structure in which a plurality of glitter material layers 20 and 21 containing the transparent glitter material 10 are provided on the light reflecting base material 30. In this case, the transparent luster materials 1 having different lengths
A transparent layer 5 between the upper and lower glitter material layers 20 and 21 containing 0.
0 is provided, and the brightness, saturation, and
In addition, the feeling of depth is also improved.

The structure shown in FIG. 7F is a structure in which a light transmitting layer 50 is further provided on the structure shown in FIG. 7E. 8 (g) to 8 (i) are variations of the above structure, and FIG. 8 (g) shows the light-reflecting substrate 3.
0, the glitter material layer 20 containing the transparent glitter material 10 has different interference colors, or several kinds of glitter material layers 2 having different content concentrations.
8h shows a structure formed by 0a to 20d, and FIG. 8 (h) shows that the light-reflecting base material 30 itself is made of several kinds of materials 30a to 30d having different light reflecting functions (reflectance, reflection spectrum shape, glossiness, etc.). Shows the structure formed from.

Further, as shown in FIG. 8 (i), in order to further improve the glossy feeling, it is possible to provide several light transmitting layers 50 and 51 to increase the film thickness. Further, in the coating layer, when the clear layer is usually thickened, the adhesion between the clear coatings tends to be deteriorated. Therefore, in order to prevent this, as shown in FIG. A structure may be used in which a transparent base 24 having excellent adhesion with 20, 21 is provided.

Further, as shown in FIGS. 9 (k) and (l), the luster material layer 20 is provided around the non-planar light-reflecting substrate 30.
May be provided, or the light-reflecting base material 30 may be provided around the other base material 60, and the glittering material layer 20 may be further coated thereon (here, a linear structure is an example. Shown as). As described above, the luster material layer 20 itself is
It may be colorless or colored as long as it has a light-transmitting property.

When the light transmitting layer 50 is colored, that is, when the light transmitting layer is colored, from the viewpoint of visual optics, the color tends to be darker, and the material has a sense of depth. Becomes even more noticeable.

Further, by providing the translucent layer 50 on the upper part of the above-mentioned structure, it is possible to further improve the high brilliance, and induce high brightness, high saturation, and also a feeling of partial depth.

[0091]

The coloring structure according to claim 1 of the present invention has the above-mentioned constitution, that is, a bright material layer containing a transparent bright material for controlling the interference light due to the reflection interference action of light and the transmitted light other than the interference light. The transparent glitter material provided on the light-reflecting substrate.
To obtain the interference color of wavelength λ1 (primary reflection peak wavelength)
The refractive indices of the two polymers are na, nb,
When the layer thicknesses are da and db, respectively, the formula: λ1 = 2
(Na da + n b db) , at least the incident light source spectrum is reflected by the transparent glittering material in the glittering material layer and is colored by interference, and the incident light source spectrum transmitted through the transparent glittering material is the light reflecting substrate. By mixing the first object color that acts and develops color and the second object color that acts and develops color directly by acting on the light-reflecting base material without acting on the transparent glittering material. Since the structure is provided with a coloring mechanism that brings about a hue change, when the coloring structure is viewed from the incident light source side, it is only possible to improve the brilliance based on the high-reflectivity effect of light from the light-reflecting substrate. Not only that, the brightness and saturation can be remarkably enhanced, and a synergistic effect such as a high brilliance feeling and a depth feeling can be obtained.

The coloring structure according to a second aspect of the present invention has a structure in which a light-transmissive base material is interposed between the light-reflective base material and the glitter material layer containing a transparent bright material. From
At least an interference color in which an incident light source spectrum is reflected and interfered by the transparent glittering material in the glittering material layer to develop a color, and a first object color in which an incident light source spectrum transmitted through the transparent glittering material acts on a light transmissive base material to produce a color. A second object color in which the incident light source spectrum transmitted through the transparent glittering material and the light transmissive base material develops by acting on the light reflecting base material, and the incident light source spectrum directly does not act on the transparent glittering material. The third object color, which is colored by acting on the light-transmitting base material, and the incident light source spectrum which is transmitted through the light-transmitting base material without acting on the transparent luster material, acts on the light-reflecting base material to form a color. The fourth color of the object has a color-developing mechanism that brings about a hue change. Therefore, when the color-forming structure is viewed from the incident light source side, it is possible to obtain a more complex tint and high brightness. Degree, high saturation, and more High luminosity, extremely excellent effect that it is possible to obtain a synergistic effect, such as color depth is Motasa.

In the color-developing structure according to claim 3 of the present invention, it is assumed that the main component of the light-reflecting base material is selected from a metallic material, a semiconductor material, or a combination thereof. In the coloring structure according to (1), since the surface of the light-reflecting base material has a mirror-like specular reflection property, incident light can be efficiently reflected, and high brightness, high saturation, and A high glittering feeling can be obtained.

Further, in the coloring structure according to the fifth aspect, since the glittering material layer is formed by laminating a plurality of layers, a feeling of depth and a feeling of depth can be obtained, and the coloring structure according to the sixth aspect. In the above, since the transparent glittering materials contained in the multiple glittering material layers are designed to emit different interference colors, it is possible to have color variations, and the tint of the transparent glittering material is unprecedented. Can be combined. Further, in the color-developing structure according to claim 7, a transparent glittering material designed to emit different interference colors is contained in one glittering material layer, and the transparent glittering material is transparent depending on the content. Not only will it be possible to obtain a variety of vivid colors, but the brightness and saturation will also increase.

Further, in the coloring structure according to the eighth aspect, since the transparent glittering material contained in the glittering material layer is dispersed at intervals allowing direct emission of the spectrum of the incident light source, In addition to the interference light due to the reflective interference effect, the transmitted light other than the interference light directly enters the light-reflecting base material without the action of the transparent glitter material, and the reflected light also exits without passing through the transparent glitter material. Therefore, strong reflected light from the light-reflecting base material is exhibited. Therefore, high brightness, high saturation, and high brilliance can be exhibited.

Further, in the coloring structure according to the ninth aspect, since the light-transmitting layer having light transmittance is provided on the upper surface of the glittering material layer, the gloss of the coloring structure surface is increased and The durability of the glitter material layer can also be improved, and the coloring structure according to claim 10 has a structure in which a layer containing an achromatic or chromatic dye is provided in the laminated structure of the transparent glitter material. Therefore, it is possible to adjust the intensity (transmittance) of the light transmitted through the transparent luster color material, the wavelength of the light, or both, and to obtain more delicate hue, lightness, and saturation.

In the color-forming structure according to the eleventh aspect, at least two layers are provided around the laminated portion constituting the transparent glitter material.
Since the structure is provided with a clad layer made of any one of the above-mentioned polymers, another polymer different from these polymers, or a combination of these polymers, it is difficult for the alternately laminated layers to peel off, and the transparent luster material The mechanical strength of itself can be improved, and further, in the coloring structure according to claim 12, the transparent glitter material has a substantially rectangular cross section, and the length of the side perpendicular to the laminated surface in the cross section of the transparent glitter material. When the length is 1, the length of the side parallel to the laminated surface is 0.8 to 25, and the length of the transparent glitter material is 0.8 to 4000. Therefore, the production of the transparent glitter material itself. Is less likely to interfere with paintability or moldability,
Moreover, since the interference coloring surface of the transparent glittering material is easily oriented toward the incident light side, the coloring effect by the reflection interference effect can be sufficiently exhibited. In addition, the transmitted light, which is the remaining light of the interference light, is not randomly reflected in the glitter material layer and directly enters the light reflecting base material, so that the glitter feeling is increased and the brightness and the saturation are increased. Will also increase.

In addition, in the color-developing structure according to the thirteenth aspect, the transparent glittering material is contained in the glittering material layer, that is, the coating layer or the resin molded product in an amount of 0.1 to 30% by mass of the total amount. Therefore, it is possible to improve the coloring effect due to the reflection interference effect and the brilliance associated with the high reflection function of the light from the light-reflecting base material without impairing the paintability and moldability.
In the coloring structure according to No. 4, since the adhesive layer for sticking is provided on at least a part of the back surface side of the light-reflecting base material as seen from the incident light source side, the base material to be adhered has a flat plate shape. Not only that, but also an uneven object, a linear object, or even a complicated object can be attached, and it can be applied to a very wide variety of product fields.

The color-forming structure of the present invention thus obtained not only improves the glitter due to the high reflection function of the light from the light-reflecting base material, but also enhances the lightness and the saturation. It provides a new design and decoration that also gives a sense of depth, for example, various helmets such as automobile wheels, emblems, marking films around the body (films such as logos and design),
In addition, building materials (aluminum fences, sign poles, etc.), sports equipment (golf club shafts, fishing reels, etc.), housings for electrical appliances and fashion accessories, various beverage or cosmetic containers, toys, backlights for various display members. The present invention can be applied to various applications such as parts, various design light diffusing reflectors, and the like.

Further, in the color-forming structure according to the present invention, as the light-reflecting base material, as described above, a metal material, a semiconductor material, or a material composed of a combination of both is mainly used. Since it has a considerable amount of conductivity, it has not only the design but also the electromagnetic shielding property (electromagnetic shielding property). This effect is particularly effective when applied to automobiles with non-metal bodies, various vehicle bodies, housings for electric appliances (personal computers, TVs, audios, refrigerators, mobile phones, etc.).

[0101]

EXAMPLES The present invention will be described more specifically below based on examples.

Example 1 As shown in FIG. 7A, a coloring structure in which a glitter material layer 20 was provided on a light-reflecting substrate 30 for efficiently reflecting incident light to the incident side. Obtained.

First, regarding the transparent glitter material 10 contained in the glitter material layer 20, polyethylene naphthalate (PEN) having a refractive index of 1.63 and the second polymer 12 are used as the first polymer 11 forming the alternate layers. With a refractive index of 1.5
Select 3 Nylon 6 (Ny-6), as well as laminated by respectively 30 layers, by covering cladding layer 13 of the periphery of polyethylene naphthalate, 6
The structure is as shown in (a).

As a result, the thickness da of the first polymer 11 is
= 0.072 .mu.m, thickness of second polymer 12 db =
As a result, 0.077 μm of a transparent luster pigment 10 (developing blue as an interference color) was obtained. The dimensional ratio of the transparent luster pigment 10 is the length A of the side perpendicular to the laminated surface of the polymers 11 and 12.
Is 1, the length B of the side parallel to the laminated surface is 4 to 5,
The length L of the transparent glitter material 10 was set to be in the range of 15 to 20.

The transparent luster pigment 1 having such a structure and dimensions.
2 liquid acrylic urethane base paint (manufactured by Nippon Bee Chemical Co., Ltd.
A paint mixed with the product name "R-241 base") was obtained.
Then, the paint compounded in this way was further added to an acrylic urethane thinner (product name "T-8 by Nippon Bee Chemical Co., Ltd."
01 thinner ”) and 11-12 in Ford Cup # 4
After diluting to a viscosity of about 2 seconds, a film thickness of 15 to 20 μm is formed on a commercially available aluminum plate (thickness 2.5 mm, surface-treated product, average reflectance 70%) as the light-reflecting substrate 30. It was painted and baked at 80 ° C. for 20 minutes to produce a color-developing structure. After degreasing the aluminum plate, acetone,
What was ultrasonically cleaned with isopropyl alcohol was used.

Example 2 A coating material prepared in the same manner as in Example 1 was similarly coated on the above-mentioned commercially available aluminum plate as the light-reflecting base material 30 to obtain a glitter material layer (coating layer) 20. Acrylic urethane clear paint (product name "R-
246 clear ") is diluted with an acrylic urethane thinner (trade name" T-801 thinner "manufactured by Nippon Bee Chemical Co., Ltd.) with a Ford cup # 4 to a viscosity of about 12 to 13 seconds, and then the film thickness becomes 30 to 35 µm. Wet-on-wet and baked at 80 ° C. for 20 minutes to form a clear coating film as the light-transmitting layer 50 on the glitter material layer 20. A structure was produced.

Example 3 First, in the same manner as in Example 1, a glitter material layer (first coating layer) containing the transparent glitter material 10 on the above-mentioned commercially available aluminum plate as the light reflecting substrate 30. ) 20 was obtained. Next, the transparent glitter material 1 formed in the same manner as the first coating layer 20 and having a length L larger than that of the transparent glitter material 10.
0, that is, when the length A of the side perpendicular to the stacking surface is 1, the length B of the side parallel to the stacking surface is 4 to 5 and the total length L thereof is 25 to 35. After being mixed with the above-mentioned two-component acrylic urethane base paint so that the mass ratio becomes 10% with respect to the whole film, and diluted with the Ford cup # 4 to a viscosity of about 11 to 12 seconds by the acrylic urethane thinner, first, It is coated on the first coating layer 20 thus coated so that the film thickness is 15 to 20 μm, and the temperature is 80 ° C.
FIG. 2 is a view in which a glitter material layer (second coating film layer) 21 is formed by baking at 20 ° C. for two minutes and upper and lower two coating film layers 20 and 21 respectively containing transparent glitter materials 10 having different lengths are provided. A coloring structure as shown in 7 (c) was produced.

Example 4 In the same manner as in Example 3, the second coating layer 21 was coated on the first coating layer 20, and the acrylic urethane clear prepared in Example 2 was further coated thereon. Similarly, the coating material was applied wet-on-wet to a film thickness of 30 to 35 μm and baked at 80 ° C. for 20 minutes to form a clear coating film as the translucent layer 50 on the glitter material layers 20 and 21. Then, a color-developing structure as shown in FIG. 7D was produced.

Example 5 A glitter material layer (first coating layer) 20 containing the transparent glitter material 10 was formed on the above-mentioned commercially available aluminum plate as the light-reflecting substrate 30 in the same manner as in Example 2. , And the transparent layer 50
(Clear coating layer) was obtained.

Then, on the clear coating layer 50,
A coating material containing the long transparent glittering material 10 prepared in Example 3 is similarly coated (second coating layer 21) to a film thickness of 15 to 20 μm, and baked at 80 ° C. for 20 minutes. As a result, a coloring structure having the clear coating layer 50 between the coating layers 20 and 21 as shown in FIG. 7E was produced.

Example 6 In the same manner as in Example 5, the glittering material layer 20 (first coating) containing the short-sized transparent glittering material 10 was formed on the above-mentioned commercially available aluminum plate as the light-reflecting base material 30. After a light-transmitting layer 50 (clear coating layer) is formed thereon, a glitter layer 21 (second layer) containing the long transparent glitter material 10 thereon.
Coating layer) was applied.

Further, the acrylic urethane clear coating composition prepared in Example 2 was similarly coated on the second coating layer 21 by wet on wet so as to have a film thickness of 30 to 35 μm, and then at 80 ° C. By baking for 20 minutes, a light transmitting layer 50 (clear coating layer) was further formed on the coating layer 21 to obtain a coloring structure as shown in FIG. 7 (f).

Example 7 The transparent glitter material 10 used in Example 1 was formed, and when the length A of the side perpendicular to the laminated surface was 1, the length B of the side parallel to the laminated surface was 2. -3, and the length L is 15 to 20 in the range of the transparent glittering material 10, a paint prepared in the same manner as in Example 1 was prepared using the above-mentioned two-component acrylic urethane base paint and acrylic urethane thinner used in Example 1. After coating on the above-mentioned commercially available aluminum plate as the light-reflecting base material 30, the same baking treatment is performed to form the glittering material layer 20 (coating layer), and the coloring structure as shown in FIG. The body was made.

Example 8 The transparent glitter material 10 used in Example 1 was formed, and when the length A of the side perpendicular to the laminated surface was 1, the length B of the side parallel to the laminated surface was 4. .About.5, a transparent luster material 10 having a length L of 1 to 3 is used, and the two-component acrylic urethane base paint and acrylic urethane thinner are used to form Example 1.
A coating material prepared in the same manner as above is applied onto the above-mentioned commercially available aluminum plate as the light-reflecting base material 30 and baked to form a glittering material layer 20 (coating layer), and a color as shown in FIG. A structure was produced.

Example 9 The transparent luster pigment 10 (A = 1, B = 4.about. Used in Example 1)
5, L = 15 to 20) in a mass ratio of 1% with respect to the entire coating film.
In addition to the above two-component acrylic urethane base paint, the acrylic urethane thinner
After diluting to the same viscosity, the above-mentioned commercially available aluminum plate as the light-reflecting substrate 30 is coated with the same film thickness, and the clear layer 50 is further formed thereon in the same manner as in Example 2. By forming a coating film and baking it, as shown in FIG.
A coloring structure as shown in was prepared.

Example 10 The transparent luster pigment 10 (A = 1, B = 4 to
5, L = 15 to 20) in a mass ratio of 28 with respect to the entire coating film.
% To the above-mentioned two-component acrylic urethane base paint and diluted with acrylic urethane thinner to a similar viscosity, and then a similar film is formed on the commercially available aluminum plate as the light-reflecting substrate 30. A thick coating is applied, and then clear coating is applied as the light transmitting layer 50 in the same manner as in Example 2, and baking is performed to form a clear coating film as the light transmitting layer 50. A coloring structure as shown was produced.

Example 11 The transparent luster pigment 10 (A = 1, B = 4.about. Used in Example 1)
5, L = 15 to 20) in a mass ratio of 28 with respect to the entire coating film.
% Of the above-mentioned two-component acrylic urethane base paint and diluted with acrylic urethane thinner to a similar viscosity, and then a commercially available glass substrate (thickness: 2.5 mm, as a light-transmitting substrate 40). The average light transmittance in the visible light region: 94%) is applied to the same film thickness and baked to form a clear coating film as the light transmitting layer 50, as shown in FIG. 2 (a). A coloring structure was produced.

As the light-reflecting base material 30, after degreasing and ultrasonic cleaning the temporary surface of the glass substrate, an Al vapor deposition film (thickness: 2 μm, average reflectance: 80) was formed by a vacuum vapor deposition method.
%) Was formed.

Example 12 The transparent luster pigment 10 (A = 1, B = 4.about. Used in Example 1)
5, L = 15 to 20) in a mass ratio of 28 with respect to the entire coating film.
% Of the above-mentioned two-component acrylic urethane base paint and diluted with acrylic urethane thinner to a similar viscosity, and then a commercially available glass substrate (thickness: 2.5 mm, as a light-transmitting substrate 40). The average light transmittance in the visible light region: 94%) is applied to a similar film thickness, and then a clear coating is applied as the light transmitting layer 50 to the film in the same manner as in Example 2, and baking is performed to obtain a transparent film. A clear coating film was formed as the light layer 50, and a coloring structure having the light transmitting layer 50 on the glitter material layer 20 shown in FIG. 2A was produced.

As the light-reflecting base material 30, after degreasing and ultrasonic cleaning the temporary surface of the glass substrate, an Au vapor deposition film (thickness: 2 μm, average reflectance: 80) was formed by a vacuum vapor deposition method.
%) Was formed.

Comparative Example 1 Instead of the light-reflecting base material 30, a paint prepared in the same manner as in Example 1 was applied on the plane of a black ABS resin as a color base in the same manner as in the bright base material 20 (coating). A light-transmitting layer 50 (clear coating film) was similarly formed on the film layer) to form a color-developing structure.

Comparative Example 2 A commercially available aluminum plate (thickness: 2.5 mm, no surface treatment, average reflectance: 30%) was used in the same manner as in Example 2.
A glittering material layer 20 containing the transparent glittering material 10 was further formed thereon, and a clear coating film as the light transmitting layer 50 was formed on the glittering material layer 20 to prepare a color forming structure.

Comparative Example 3 By the same procedure as in Example 2, a commercially available glass substrate (having a thickness of 2.5 m) as a light-transmitting substrate 40 having light-transmitting property is used.
m, the average light transmittance in the visible light region: 94%), a glitter material layer 20 containing the transparent glitter material 10, and a clear coating film as the light transmitting layer 50 was formed thereon.

On the other hand, on the lower surface of the above-mentioned commercially available glass substrate, a silver metallic two-component acrylic urethane base paint (manufactured by Nippon Bee Chemical Co., Ltd., trade name "R-241BKLO"
The base ") was diluted to the same viscosity with the acrylic urethane thinner, and then similarly coated and baked to produce a color-developing structure provided with a color base layer instead of the light-reflecting base material 30.

Performance Evaluation The performance of each color forming structure obtained by the above Examples and Comparative Examples was evaluated, and the results are summarized in Table 1.

The performance evaluation of the color-developing structure was performed as follows.

(1) Appearance state: visually (subject 5
Man).

(2) Tint and reflectance: by reflection spectrum measurement by a three-dimensional colorimeter (manufactured by Nissan: measurement wavelength λ = 380-780 nm) and by chromaticity coordinates.

(3) Lightness and saturation: From the above results, Mun
Converted to cell color system (VHC space), and brightness (V)
And calculate saturation (C).

(4) Brightness: Five-level evaluation by visual observation (five subjects).

[0131]

[Table 1]

As is clear from the results shown in Table 1, the luster color material layer 20 and the light transmitting layer 50 were formed on the ABS resin or acrylic urethane coating which is a color base, and the aluminum plate which is not surface-treated and has a low reflectance. In the coloring structure according to the comparative example, the appearance is inferior and the luster is poor, whereas the refractive index is different on the light-reflecting substrate 30 such as an aluminum plate or an Au vapor deposition film having a high reflectance. A transparent luster pigment 10 having an alternating laminated structure of polymers and having a predetermined dimensional ratio.
The glittering material layer 20 containing singly or the transparent layer 50.
It was confirmed that the coloring structure according to the example provided with the light-transmissive base material 40 not only has excellent glitter, but also has significantly improved lightness and saturation.

[Brief description of drawings]

FIG. 1 (a) is a cross-sectional view showing a first basic structure of a color forming structure according to the present invention. FIG. 1B is a cross-sectional explanatory view showing a coloring mechanism in the coloring structure shown in FIG.

FIG. 2 (a) is a sectional view showing a second basic structure of the color forming structure according to the present invention. FIG. 3B is a cross-sectional explanatory view showing a coloring mechanism of the coloring structure shown in FIG.

FIG. 3 is an enlarged cross-sectional view of the transparent glitter material shown in FIGS. 1 and 2.

FIG. 4A is an enlarged cross-sectional view of a transparent luster color material in which an achromatic dye layer is provided in a laminated layer. (B) FIG. 5 is a cross-sectional explanatory view showing a coloring mechanism of the coloring structure shown in FIG. 4 (a).

FIG. 5A is an enlarged cross-sectional view of a transparent luster color material in which a chromatic color dye layer is provided in a laminated layer. FIG. 6B is a cross-sectional explanatory view showing a coloring mechanism of the coloring structure shown in FIG.

FIG. 6 (a) is a perspective view showing a structure of a rectangular transparent luster pigment having a clad layer. (B) It is a perspective view which shows the structure of the rectangular transparent bright material provided with the double clad layer.

7A to 7E are cross-sectional views showing a specific structural example of a color forming structure according to the present invention.

8 (g) to (j) are cross-sectional views showing another specific structural example of the coloring structure according to the present invention.

9 (k) and (l) are cross-sectional views showing still another specific structural example of the color forming structure according to the present invention.

[Explanation of symbols]

10 Transparent luster material 11,12 Polymer 13,14 Cladding layer 15 Achromatic dye layer 16 Chromatic dye layer 20,21 Bright material layer 30 light reflective substrate 40 Light-transmissive base material 50,51 translucent layer L1 incident light source spectrum Ci3 interference color Cb4, Cb5, Cb6, Cb7, Cb8, Cb9 Object color

─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. ⁷ Identification Code FI B44C 3/02 B44C 3/02 Z B44F 1/04 B44F 1/04 G02B 5/28 G02B 5/28 (72) Inventor Kumazawa Kinya 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Hiroshi Tabata 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Inventor, Masahiko Yamanaka Kanagawa Nissan Motor Co., Ltd. 2 Takaramachi, Kanagawa-ku, Yokohama-shi, Japan (72) Inventor Toshihiko Sada 2 Takara-machi, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (56) Reference JP-A-57-146700 ( JP, A) JP 4-277254 (JP, A) JP 7-89526 (JP, A) JP 11-289924 (JP, A) Actual opening 2-2200 (JP, U) Actual opening 57-1 41034 (JP, U) Actual development Flat 5-12198 (JP, U) Actual development Sho 61-172197 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B44C 5/08 B05D 5 / 06 B05D 7/24 B32B 7/02 B32B 33/00 B44C 3/02 B44F 1/04 G02B 5/28

Claims (14)

(57) [Claims] 1. Interfering light due to a reflective interference action of light obtained by alternately laminating two kinds of polymers having different refractive indexes,
A glitter material layer containing a transparent glitter material that controls transmitted light other than interference light is provided on a light-reflecting base material that reflects incident light to the incident side, and the transparent glitter material is of two types. Each refractive index of polymer
And na and nb, and the layer thicknesses are da and db.
In order to obtain the interference color of wavelength λ1, the primary reflection peak wave
The length λ1 satisfies λ1 = 2 (na da + nb db) , and at least the incident light source spectrum has an interference color generated by reflection interference by the transparent glittering material in the glittering material layer and an incident light source spectrum transmitted through the transparent glittering material. A first object color that develops color by acting on the light-reflecting base material, and a second object color that directly acts on the light-reflecting base material color base without the incident light source spectrum acting on the transparent glittering material. A coloring structure having a coloring mechanism that causes a hue change when mixed with an object color. 2. Interference light due to a reflection interference effect of light obtained by alternately laminating two kinds of polymers having different refractive indexes on one surface of a light transmissive substrate having light transmissivity, and other than the interference light. While a glitter material layer containing a transparent glitter material for controlling the transmitted light of, is formed on the other surface of the light-transmitting base material, a light-reflecting base material that reflects the incident light to the incident side. The transparent luster material is provided, and the refractive index of the two kinds of polymers are different from each other.
And na and nb, and the layer thicknesses are da and db.
In order to obtain the interference color of wavelength λ1, the primary reflection peak wave
The length λ1 satisfies λ1 = 2 (na da + nb db) , and at least the incident light source spectrum has an interference color generated by reflection interference by the transparent glittering material in the glittering material layer and an incident light source spectrum transmitted through the transparent glittering material. A first object color that acts on the interface of the light-transmissive substrate to develop a color, and a second object color that acts on the light-reflecting substrate by the incident light source spectrum transmitted through the transparent luster material and the light-transmissive substrate. An object color, and a third object color in which the incident light source spectrum directly acts on the interface of the light transmissive base material without acting on the transparent luster color material to develop color
A coloring mechanism that brings about a hue change by mixing a fourth object color, in which an incident light source spectrum transmitted through the light transmissive base material without acting on the transparent glitter material acts on the light reflective base material, is provided. A coloring structure characterized by being provided. 3. The coloring structure according to claim 1, wherein the light-reflecting substrate is made of a metallic material, a semiconductor material, or a combination material of the metallic material and the semiconductor material. . 4. The color-forming structure according to claim 1, wherein the light-reflecting base material is made of a material having specular reflectivity. 5. The coloring structure according to any one of claims 1 to 4, wherein a plurality of glittering material layers are laminated and provided. 6. The color-developing structure according to claim 5, wherein the transparent glittering material contained in each of the laminated glittering material layers is designed to emit different interference colors in the respective layers. 7. The coloring structure according to claim 6, wherein the transparent glittering materials contained in one glittering material layer are designed to emit different interference colors. 8. The color forming structure according to claim 1, wherein the transparent glittering material contained in the glittering material layer is dispersed at intervals allowing direct emission of an incident light source spectrum. body. 9. The color forming structure according to claim 1, further comprising a light transmitting layer having a light transmitting property on the upper surface of the glitter material layer. 10. The color forming structure according to claim 1, wherein a layer containing an achromatic colorant or a chromatic colorant is provided in the laminated structure of the transparent luster color material. body. 11. A transparent luster material is provided with a clad layer around any one of the at least two kinds of polymers, another polymer different from these polymers, or a combination of these polymers around the laminated portion. The coloring structure according to any one of claims 1 to 10. 12. The transparent glitter material has a substantially rectangular cross section, and when the length of the side perpendicular to the laminated surface in the cross section of the transparent glitter material is 1, the length of the side parallel to the laminated surface is 0. The coloring structure according to any one of claims 1 to 11, wherein the transparent glittering material has a length of 0.8 to 4000 and a length of 0.8 to 4000. 13. The coloring according to claim 1, wherein the transparent material contains 0.1 to 30% by mass of the total amount of the transparent material in the bright material layer. Structure. 14. The color-developing structure according to claim 1, further comprising an adhesive layer for sticking on at least a part of the light-reflecting base material on the side opposite to the luster material layer. body.